20205740745116 has 12 divisors (see below), whose sum is σ = 35372252070288. Its totient is φ = 10099383010752.

The previous prime is 20205740745083. The next prime is 20205740745173. The reversal of 20205740745116 is 61154704750202.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 871827416 + ... + 871850591.

It is an arithmetic number, because the mean of its divisors is an integer number (2947687672524).

Almost surely, 2^{20205740745116} is an apocalyptic number.

It is an amenable number.

20205740745116 is a deficient number, since it is larger than the sum of its proper divisors (15166511325172).

20205740745116 is a wasteful number, since it uses less digits than its factorization.

20205740745116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1743680908 (or 1743680906 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 44.

The spelling of 20205740745116 in words is "twenty trillion, two hundred five billion, seven hundred forty million, seven hundred forty-five thousand, one hundred sixteen".